Pump.



G. JOHNSON 6L N. J. RUSSELL.

PUMP.

APPLICATION FILED MAR. 17, 1911.

1,022,556. Patented Apr. 9, 1912.

Guai/af Jgonson 1507. J. Ahmed.

GUSTAE .IonNsoN AND' NELSON J. nUssELL, or nocxrom), ILLINOIS.

.FUER

Specmcation of Letters Patent.

application inea mien i1, 1an. seal No. 614,999.

i To all whom it may xmcem.'

Be it known lthat. we, GUBTAF JOHNSON and NELSON J. RUSSELL, citizens of the United States, residing at Rockford, in the county of 'Winnebago and State of Illinois, have invented certain new and useful Im provements in Pumps, of which the following is aspecification.

This invention relates to improvementsin pumps, and it consists in certain pecularities of the construction, novel arrangement, and operation of the various parts thereof as will be hereinafter more fully set forth and specifically claimed.

The principal object of the invention is to provide a pump which shall be simple and inexpensive 1n construction, strong, durable, and effective in operation.

Other objects and advantages of the invention will be disclosed in the subjoined: description and explanation. Q

In order to enable others skilled in the art; to which the invention pertains, to make and use the same, we will now proceed to describe it referring to the accompanying drawing in which- Figure 1, is a vertical sectional view through the center of a pump embodying the invention. Fig. 2, is a view partly in section and partly in elevation of the pump, showing the plunger or piston thereof and some of the valves in a different position from that illustrated in Fig. 1, and Fig. 3, is a view of one of the valve seats showing it detached from theq casing.

Like numerals of reference refer to corresponding parts throughout the different views of the drawing.

The reference numeral 28, designates t-he piston or plunger operating rod, to the 11p-- per portion of which rod power may be applied in any suitable manner for operating the pump. The lower portion of the rod 28, is pivotally secured to a projection 29, on the inner surface of the lower portion of the plunger or piston 30, of the pump. This piston or plunger as is clearly shown in Figs. 1, and 2, of the drawing, is located in an upright cylinder 31, thereof, which cylinder may be supported in any suitable manner, and has at its upper end an annular recess 32, to receive a metal packing ring 33, 'which fits snugly around the plunger or piston 30, and has at its upper portion an annular flange 34, to rest on the top of the plunger cylinder, the upper end of which cylinder is externally screw threaded to engage the internally screw threaded portion of the sleeve 35, which has an inwardly extended lange 36,1ocated ataboutl its .middle to fitl snugly around the piston 30, and to rateiidapne, 1912.

rest onthe upper surface of the' flange 34,

of said packing. The upper portion ofthesleeve 35, is externally -screw threaded'to engage the screw threads of a cap- 37, which surrounds the upper'portionl of the piston 30, and forms a,l closure for the space 38, between the upper portion of said cap and the flange 36, on. the sleeve 35, thus formin a sealed compartment for holding lubricating or other material for the piston 30, and its cylinder, 4and ,at the same, time providing means for .preventing the passage of air between said-fbyliiider and the piston therein. The lowr'ffportion of the cylinder 31, is provided with a horizontally disposed bpening.`39, which has communication through ai tubular projection 40, with a' section 41, of the valve casing of the pump.

This casing is composed of a series of sections to permit of the easy assemblage of the valves and springs which actuate the same, and is herein shown, as comprising the-tubular section 41, having its upper and lower ends screw threaded, the former end to engage external screw threads on 4the valve seat'42, and the latter to engage similar screw. threads onthe valve seat 43, which latter valve seat is'l'formed integral with a section 44, of the casing, which latter section hasf at its lower end internal screwv threads' to engage a valve seat 45, the lower portion of which engages the lowermost section 46, of the valve casing which section has an inlet opening 47, to which may be connected by means of a suitable coupling 48, a pipe, not shown, leading from a source of supply.

Engaging the upper portion of the valve seat 42, is a section 51, of the valve casing which has formed integral with its up er portion an annular valve seat 52, which as its upper portion externally screw threaded to engage a cap 53, which is provided with a centrally disposed tubular projection 54, to which is connected one end of a discharge pipe 55, which may lead to a suitable point of discharge. Each of the valve seats 42, 43, 45, and 52, is annular in shape, and is provided at its upper portion with an inwardly and downwardly beveled surface 56 to ref ceive the correspondingly shaped edges of the valves which rest on said seats. Each of the valve seats, whether made Vintegral with sections of the valve casing, or separately therefrom, is substantially of thev same construction, and each has a diametrically disposed member 57, against.' which' guides or bearings for said stems.v Each of the lvalve seats 42, and 53, which are located above the channel of communication' between thc valve casing 41, and the cylinder 31, is also provided with a disk valve" 59,.of the same construction as those 'justz described. Surrounding a portion 'of eachof the valves is a spring 58, which rests at one of its ends on the upper surface of a valve and at its other end` against the member 57 of the valve seats, except in the case of the uppermost spring, which rests at its up er portion against the cap 53, of' the, va ve casing. Y

From the foregoing and by reference to the, drawing, it will be clearly seen, and readily understood, that when power is applied to thex operating rod 28, the piston 30, w111be1vreciprocatedthus causing the alternate operation of the valves 59, a pair of Teach of which is located above and below the port leading from the valve easing to Vthoplunger cylinder. In thisop'erationgit 1s.. .apparent,thatuction will be created at the l'nletopenixig'47, and that liquid or fluid will be drawn into the valve casing, and forced; therefrom" through the. 'discharge pipe 55, to the desired point of'discharge.

'Having thus fully described our inventionfwha't `vve"jclaim"as new and desire to Scurelby Lel tersiPatcnt is- ,"Ajpump yincluding a valvedcasing :pro-

vvided with an inlet and an "outlet, 'apump `cylinder `communicating with "said casing between the endsthereof and having'at its upper end an'annularfrecess, a'packingv ring fitted in said recess, 'a .sleeve fit-,ted on the upper'portion of said cylinder and having an inwardly extended flange torest on' said packingv rng,`a cap' secured on the upper fportion of said s `lceve,`a plunger mounted in said cylinder and extended through Said 

